This is the LRP SXX Competition &
Vector X-12 5.5T Combo from Associated.

Features

Associated LRP80655 SXX
Competition+Vector X-12 5.5T Combo

Motor:
New design features allow you to access and replace the rotor, while leaving
the motor in the vehicle
PreciSensor(TM) system allows precision sensor positioning for more power,
torque, throttle response, and efficiency
New sintered 12.5mm size magnet and new strengthened shaft further optimize
the motor's performance, efficiency, and mid-range torque